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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ | 5 #ifndef BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ |
| 6 #define BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ | 6 #define BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/base_export.h" | 10 #include "base/base_export.h" |
| 11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
| 12 #include "base/file_path.h" | 12 #include "base/file_path.h" |
| 13 #include "base/values.h" | 13 #include "base/values.h" |
| 14 | 14 |
| 15 class BASE_EXPORT JSONFileValueSerializer : public base::ValueSerializer { | 15 class BASE_EXPORT JSONFileValueSerializer : public base::ValueSerializer { |
| 16 public: | 16 public: |
| 17 // json_file_patch is the path of a file that will be source of the | 17 // json_file_patch is the path of a file that will be source of the |
| 18 // deserialization or the destination of the serialization. | 18 // deserialization or the destination of the serialization. |
| 19 // When deserializing, the file should exist, but when serializing, the | 19 // When deserializing, the file should exist, but when serializing, the |
| 20 // serializer will attempt to create the file at the specified location. | 20 // serializer will attempt to create the file at the specified location. |
| 21 explicit JSONFileValueSerializer(const base::FilePath& json_file_path) | 21 explicit JSONFileValueSerializer(const FilePath& json_file_path) |
| 22 : json_file_path_(json_file_path), | 22 : json_file_path_(json_file_path), |
| 23 allow_trailing_comma_(false) {} | 23 allow_trailing_comma_(false) {} |
| 24 | 24 |
| 25 virtual ~JSONFileValueSerializer() {} | 25 virtual ~JSONFileValueSerializer() {} |
| 26 | 26 |
| 27 // DO NOT USE except in unit tests to verify the file was written properly. | 27 // DO NOT USE except in unit tests to verify the file was written properly. |
| 28 // We should never serialize directly to a file since this will block the | 28 // We should never serialize directly to a file since this will block the |
| 29 // thread. Instead, serialize to a string and write to the file you want on | 29 // thread. Instead, serialize to a string and write to the file you want on |
| 30 // the file thread. | 30 // the file thread. |
| 31 // | 31 // |
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| 67 // be a JsonFileError. | 67 // be a JsonFileError. |
| 68 static const char* GetErrorMessageForCode(int error_code); | 68 static const char* GetErrorMessageForCode(int error_code); |
| 69 | 69 |
| 70 void set_allow_trailing_comma(bool new_value) { | 70 void set_allow_trailing_comma(bool new_value) { |
| 71 allow_trailing_comma_ = new_value; | 71 allow_trailing_comma_ = new_value; |
| 72 } | 72 } |
| 73 | 73 |
| 74 private: | 74 private: |
| 75 bool SerializeInternal(const Value& root, bool omit_binary_values); | 75 bool SerializeInternal(const Value& root, bool omit_binary_values); |
| 76 | 76 |
| 77 base::FilePath json_file_path_; | 77 FilePath json_file_path_; |
| 78 bool allow_trailing_comma_; | 78 bool allow_trailing_comma_; |
| 79 | 79 |
| 80 // A wrapper for file_util::ReadFileToString which returns a non-zero | 80 // A wrapper for file_util::ReadFileToString which returns a non-zero |
| 81 // JsonFileError if there were file errors. | 81 // JsonFileError if there were file errors. |
| 82 int ReadFileToString(std::string* json_string); | 82 int ReadFileToString(std::string* json_string); |
| 83 | 83 |
| 84 DISALLOW_IMPLICIT_CONSTRUCTORS(JSONFileValueSerializer); | 84 DISALLOW_IMPLICIT_CONSTRUCTORS(JSONFileValueSerializer); |
| 85 }; | 85 }; |
| 86 | 86 |
| 87 #endif // BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ | 87 #endif // BASE_JSON_JSON_FILE_VALUE_SERIALIZER_H_ |
| 88 | 88 |
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